Do brief high RPMs hurt your car?

Asked by Sep 24, 2015 at 07:35 PM about the 2013 Ford Fusion SE

Question type: General

My girlfriend is convinced that when I merge onto the highway, if I step on the gas and reach higher RPMs (like 3600 - 4800), that it's very bad for the car. It's only for that brief period of reaching an acceptable merging speed, but she's still convinced it's "bad for the car". I disagree. Thoughts?

9 Answers


haaaa. no.....


nooooooo..........but what do i know..


it will do more harm if you dont blow it out from time to time


The car red lines at 5500 rpms. And, since you have the SE, it's an automatic, correct. I don't think there's anything wrong with that, however, I would only do it when necessary to safely merge into traffic. It does use more fuel and probably is just a little more wear and tear, but, it can easily handle it. Just make sure that your oil levels are correct. Just my opinion.


I agree with Kelly, you need to open it up on occasion.

I agree with those guys about 'opening it up' but shows a red-line of 6500

3 of 3 people found this helpful.

Other words don't be afraid to STOMP on it. The engine can and will tolerate far above 4800rpm

3 of 3 people found this helpful.

David, thanks, found that 5500 number at Edmunds. If he has the automatic, it will limit the top rpms anyway.

1 of 1 people found this helpful.

Agreed. That I put up came from owners manual. Edmunds I have found is not always accurate

3 of 3 people found this helpful.

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